Question

Why is the fuse wire fitted in a porcelain casing?
A. Porcelain is an insulator of electricity.
B. Porcelain is a conductor of electricity.
C. Porcelain is a semiconductor of electricity.
D. None of these.

Answer 1

Hint: Porcelain, is a material used in fuse because of its few properties. Porcelain is a vitrified pottery with a white, fine-grained body that is usually translucent, as distinguished from earthenware, which is porus and opaque.

Complete answer:
The fuse wire is fitted in porcelain casing because porcelain may be an insulator of electricity.
We also use it because it's a really safe and convenient device. The fuse wire is stretched between two terminals during a porcelain holder. This porcelain holder is tightly fit into a porcelain socket which is connected within the busy bee within the circuit. Porcelain may be an excellent insulator and therefore if the part of the holder we touch is away from the eager beaver then there's no damage from getting any electric shock.

So from the above given reasons we conclude that option (A) is correct.

Additional information:
The term porcelain refers to a good range of ceramic products that are baked at high temperatures to realize vitreous, or glassy, qualities like translucence and low porosity. Among the foremost familiar porcelain goods are table and ornamental china, chemical ware, dental crowns, and electrical insulators. Usually white or off-white, porcelain comes in both glazed and unglazed varieties, with bisque, fired at a heat, representing the foremost popular unglazed variety.

Note:
We know in electronics and electrical physics, a fuse is an electrical guard that operates to supply overcurrent protection of a circuit. Its essential component may be a metal wire or strip that melts when an excessive amount of current flows through it, thereby stopping or interrupting the present. Fuse is employed in lifestyle and essential for our electrical machines.